This code used to work on iOS9 to add a watermark and text to a video but since iOS10 it's not working anymore. There is a iOS 10 bug that has been filed but no answer from Apple. I have not been a...

I'm using Swift to show content from an AVPlayer in a view's AVPlayerLayer. The associated AVPlayerItem has a videoComposition, and slightly simplified version of the code to create it (without err...

I want to apply CIFilter on video and save that filter applied video. I am using AVMutableVideoComposition (also tried with AVVideoComposition) for apply filter on video and its working fine with ...

UPDATE 6: I've managed to fix my issue completely but I still would like a better explanation than what I'm guessing is the reason it didn't work if I'm incorrect I've been trying to animate a spr...

After applying an AVVideoComposition to my AVPlayerItem, the filter I apply does work, but the video gets rotated in the AVPlayerLayer. I know for a fact that the problem is not with the filtered ...

I need a simple thing: play a video while rotating and applying CIFilter on it. First, I create the player item: AVPlayerItem *item = [AVPlayerItem playerItemWithURL:videoURL]; // DEBUG LOGGING AV...

I'm attempting to apply a CIFilter to an AVAsset, and then save it with the filter applied. The way that I am doing this is by using an AVAssetExportSession with videoComposition set to an AVMutabl...

I would make reduced size video, maybe 50 pixel across and 75 pixels for length. Those are the physical dimension. How do you set that? in the videosettings? I think AVVideoWidthKey and AVVideoHe...

I'm currently extracting every frame from a video with AVAssetImageGenerator, but sometimes it returns me successively 2 times almost the same image (they do not have the same "frame time"). The fu...

I know you could merge multiple clips and create a single video by appending one after other using AVFoundation classes- AVURLAsset, AVMutableComposition, AVMutableCompositionTrack etc. There are...

I'm recording video using AVCaptureSession with the session preset AVCaptureSessionPreset640x480. I'm using an AVCaptureVideoPreviewLayer in a non-standard size (300 x 300) with the gravity set to ...

AVFoundation allows you to "compose" 2 assets (2 videos) as 2 "tracks", just like in Final Cut Pro, for example. The theory says I can have 2 videos on top of each other, with alpha, and see both...